Uninterruptible power supply (UPS) with built-in USB hub

Abstract

The invention provides a kind of UPS with a built-in USB. The invention consists of a cover, a control circuit of UPS, a USB hub circuit, an electric transformer and a rechargeable battery. The cover has at least one control button and signal light. The control circuit of the UPS has a USB power conversion circuit to transform 12V current of the UPS to 5V current power for working voltage supply by the USB hub circuit. The UPS connects to computer devices through a USB cable and utilizes a power control software on the computer to monitor power supply of the UPS.

What is claimed is:  
     
         1 . A UPS with a built-in USB hub mainly builds a USB hub in the UPS device. The UPS includes: 
 a cover with one power cord, at least one power outlet, and at least one USB interface sockets on the upper cover. The enclosure of the cover forms an inner space;    at least one control circuit board, which is installed in the inner space of the cover to generate power supply and control signals of the UPS, and transfer signals of a USB hub;    an electric transformer, which is installed in the inner space of the cover to transform AC current power to low-voltage AC current power for required power supply of the control circuit board; and    a rechargeable battery, which is installed in the inner space of the cover to store electric power supply against a power outage.    
     
     
         2 . The invention of  claim 1 , wherein the cover includes at least one control button for switching on and off controls of the UPS.  
     
     
         3 . The invention of  claim 1 , wherein the cover has at least one signal light to display status of the UPS.  
     
     
         4 . The invention of  claim 1 , wherein the control circuit board consists of a control circuit of UPS. The control circuit includes: 
 an electric inputting circuit, which rectifies and regulates AC power input by the electric transformer to DC current power to supply working voltage of the whole control circuit;    a signal processor, which is the control center of the whole control circuit;    a AC-voltage detecting circuit, which detects general AC power supply and transfers it to the signal processor;    a charging circuit, which is controlled by the signal processor to supply charging current of the rechargeable battery during normal AC power supply;    a DC/AC converter circuit, which is controlled by the signal processor to transform DC current of the rechargeable battery to general AC power supply during power failures; and    a power detector circuit, which detects power voltage of DC/AC conversion and transfers it to the signal processor.    
     
     
         5 . The invention of  claim 1 , wherein the control circuit board further includes a USB hub circuit. The USB hub circuit comprises: 
 a USB input connector, which connects to computer equipment or Up-link to another USB output connectors;    at least one USB output connector, which connects to peripheral equipment or Down-link to another USB input connector;    at least one power amplifier, which corresponds to the USB output connectors to provide USB output connectors with stable working voltage;    a signal processor, which is the control center of the whole USB hub circuit to transfer signals from USB input connector to one of the USB output connector or from one of the USB output connector to USB input connector.    
     
     
         6 . The invention of  claim 1 , wherein the control circuit board further consists a USB power conversion circuit to transfer 12V DC current using by control circuit of the UPS to 5V DC current for working voltage supply of USB hub circuit.  
     
     
         7 . A kind of UPS with a built-in USB hub mainly installs USB interface in the UPS to connect computer equipment through a USB cable and to monitor general AC power supply of the UPS. The UPS comprises: 
 a cover with one power cord, at least one power outlet, and at least one USB interface sockets on the upper cover. The enclosure of the cover forms an inner space;    a rechargeable battery, which is installed in the inner space of the cover to store electric power supply against a power outage.    a control circuit, which detects general AC power to control charging of a rechargeable battery or transfer DC current of rechargeable battery to general AC power output;    a control circuit board, which is installed in the inner space of the cover to generate power supply and control signals of the UPS, and transfer signals of a USB hub;    an electric transformer, which is installed in the inner space of the cover to transform AC current power to low-voltage AC current power for required power supply of the control circuit board; and    a USB cable, which is signal connection between the UPS and a computer;    a USB interface circuit, which transfers signals from the control circuit to a computer, or from a computer to the control circuit;    a power control software, which implements on a computer to monitor power supply of the UPS.    
     
     
         8 . The invention of  claim 7 , wherein it further consists of a signal transfer circuit to transfer signals from the USB interface circuit to RS-232 interface circuit for signal transformation between the UPS and a computer.  
     
     
         9 . The invention of  claim 7 , wherein the cover has at least one control button to control switching on and off the UPS.  
     
     
         10 . The invention of  claim 7 , wherein the control circuit further consists of a USB power conversion circuit to transfer 12V DC current to 5V DC current for working voltage supply of the USB interface circuit.